Sixteen lifter bushings later, we'd resolved the problem. Four half-round tubes were epoxied into the cam tunnel to seal off the cam oil and keep it from dropping into the spinning crank. This step saved me from disaster later. Finally, a sheet steel manifold for directing the returning camshaft and upper end oil around the crank was devised and installed ahead of the rear main. This way, it could return oil directly to the pan sump without getting mixed up in the rotating assembly."